1.casing pipe slotted screen is in various ways on the petroleum casing or tubing cutting out more than a certain specifications of the longitudinal or helical inline and staggered slot.
2.it is using special ultra-thin cutting plate and beam cutting , the slot width is 0.2 to 0.5 mm.
Seam cross section is rectangular, trapezoidal (trapezoid Angle of 3-8 degrees) and form (hole)
and so on , there are many kinds of form, could guarantee permeability is 0.5% - 10%,
the arrangement of aperture according to user requirements for processing.
strainer,casing pipe
length:≤12m (each)
outside diameter :50-500mm
thread: BTC,LTC,STC
slot width:(0.10-4)mm±0.03mm
slot number:as per customer's requirement
slot shapes:straight in line pattern, staggered pattern ,spiral pattern
slot space:as per customer's requirement
slotted casing with apertures of 0.20-6mm are wide used in prevention of oil and wells
